Manchester City have been drawn at home to Leeds United in the FA Cup fifth round.
Championship side Leeds caused a minor upset in the fourth round by knocking out Premier League opposition Tottenham Hotspur.
Meanwhile, Oldham Athletic's reward for shocking Liverpool 2-1 is a tie at home to Everton.
The FA Cup fifth round will be played across February 16 and 17.
FA CUP FIFTH ROUND DRAW:
Arsenal vs. Blackburn Rovers
Manchester City vs. Leeds United
Manchester United vs. Reading
Middlesbrough vs. Chelsea/Brentford
Oldham Athletic vs. Everton